Remember when Riley and Kalani had to go out that hospital window and the sheets fell. They had to leave Michael and Burt- and they ended up walking thru that creepy mental hospital? Didn't they see the tattooed one in there? I'm in the middle of that episode so I'm not sure how that shakes out. But it makes me wonder if he had some connection to that place. Criminally insane maybe? I can't help but wonder if he was some sort of super horrific criminal serial killer pure evil sort, before he turned - and this is what we get. Pimped out tattoo inky bad zombie.